Revert "Mute all flaky IndicesRequestCacheIT tests (#14077)" (#14238)

This reverts commit fbe048f. Muting
these tests was only intended to be temporary to unblock the 2.15
release.

Signed-off-by: Andrew Ross <andrross@amazon.com>
(cherry picked from commit 90ef844)
Signed-off-by: github-actions[bot] <github-actions[bot]@users.noreply.github.com>

server/src/internalClusterTest/java/org/opensearch/indices/IndicesRequestCacheIT.java

@@ -631,7 +631,6 @@ public void testCacheWithFilteredAlias() throws InterruptedException {
         assertCacheState(client, index, 2, 2);
     }
 
-    @AwaitsFix(bugUrl = "https://github.com/opensearch-project/OpenSearch/issues/11374")
     public void testProfileDisableCache() throws Exception {
         Client client = client();
         String index = "index";
@@ -674,7 +673,6 @@ public void testProfileDisableCache() throws Exception {
         }
     }
 
-    @AwaitsFix(bugUrl = "https://github.com/opensearch-project/OpenSearch/issues/12308")
     public void testCacheWithInvalidation() throws Exception {
         Client client = client();
         String index = "index";
@@ -759,7 +757,6 @@ public void testCacheClearAPIRemovesStaleKeysWhenStalenessThresholdIsLow() throw
     }
 
     // when staleness threshold is lower than staleness, it should clean the stale keys from cache
-    @AwaitsFix(bugUrl = "https://github.com/opensearch-project/OpenSearch/issues/13540")
     public void testStaleKeysCleanupWithLowThreshold() throws Exception {
         int cacheCleanIntervalInMillis = 1;
         String node = internalCluster().startNode(
@@ -806,7 +803,6 @@ public void testStaleKeysCleanupWithLowThreshold() throws Exception {
     }
 
     // when staleness threshold is equal to staleness, it should clean the stale keys from cache
-    @AwaitsFix(bugUrl = "https://github.com/opensearch-project/OpenSearch/issues/13503")
     public void testCacheCleanupOnEqualStalenessAndThreshold() throws Exception {
         int cacheCleanIntervalInMillis = 1;
         String node = internalCluster().startNode(
@@ -985,7 +981,6 @@ public void testStaleKeysRemovalWithoutExplicitThreshold() throws Exception {
     }
 
     // when cache cleaner interval setting is not set, cache cleaner is configured appropriately with the fall-back setting
-    @AwaitsFix(bugUrl = "https://github.com/opensearch-project/OpenSearch/issues/13711")
     public void testCacheCleanupWithDefaultSettings() throws Exception {
         int cacheCleanIntervalInMillis = 1;
         String node = internalCluster().startNode(
@@ -1026,7 +1021,6 @@ public void testCacheCleanupWithDefaultSettings() throws Exception {
     }
 
     // staleness threshold updates flows through to the cache cleaner
-    @AwaitsFix(bugUrl = "https://github.com/opensearch-project/OpenSearch/issues/13949")
     public void testDynamicStalenessThresholdUpdate() throws Exception {
         int cacheCleanIntervalInMillis = 1;
         String node = internalCluster().startNode(
@@ -1174,7 +1168,6 @@ public void testCacheCleanupAfterIndexDeletion() throws Exception {
     }
 
     // when staleness threshold is lower than staleness, it should clean the cache from all indices having stale keys
-    @AwaitsFix(bugUrl = "https://github.com/opensearch-project/OpenSearch/issues/13437")
     public void testStaleKeysCleanupWithMultipleIndices() throws Exception {
         int cacheCleanIntervalInMillis = 10;
         String node = internalCluster().startNode(
@@ -1229,7 +1222,6 @@ public void testStaleKeysCleanupWithMultipleIndices() throws Exception {
         }, cacheCleanIntervalInMillis * 2, TimeUnit.MILLISECONDS);
     }
 
-    @AwaitsFix(bugUrl = "https://github.com/opensearch-project/OpenSearch/issues/13600")
     public void testDeleteAndCreateSameIndexShardOnSameNode() throws Exception {
         String node_1 = internalCluster().startNode(Settings.builder().build());
         Client client = client(node_1);